I just installed Emacs 24 (emacs24 24.1+1-2ubuntu3) in Ubuntu 12.04 but it does not seem to work with Auctex (the current version is 11.86-2ubuntu2). My .emacs file contains a line loading Auctex, so when starting the editor for the first time I received an error it cannot find auctex.el. Indeed /usr/share/emacs/24.1/site-lisp does not contain any trace of auctex. I thought it could be an issue with auctex being installed before emacs 24, so I reinstalled it. The installation log reads as follows: